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A cryptocurrency is a decentralized digital currency that is designed for secure and private asset transfer and storage. As a currency, it should be difficult to counterfeit and double-spend. In this paper, we review and analyze the major…

Cryptography and Security · Computer Science 2019-04-26 Ehab Zaghloul , Tongtong Li , Matt Mutka , Jian Ren

There are no solid arguments to sustain that digital currencies are the future of online payments or the disruptive technology that some of its former participants declared when used to face critiques. This paper aims to solve the…

Statistical Finance · Quantitative Finance 2018-12-03 Obryan Poyser

World currency network constitutes one of the most complex structures that is associated with the contemporary civilization. On a way towards quantifying its characteristics we study the cross correlations in changes of the daily foreign…

Statistical Finance · Quantitative Finance 2009-11-13 S. Drozdz , A. Z. Gorski , J. Kwapien

Recent developments in the global liberalization of equity and currency markets, coupled to advances in trading technologies, are making markets increasingly interdependent. This increased fluidity raises questions about the stability of…

adap-org · Physics 2019-08-15 Tad Hogg , Bernardo A. Huberman , Michael Youssefmir

Research in blockchain systems has mainly focused on improving security and bridging the performance gaps between blockchains and databases. Despite many promising results, we observe a worrying trend that the blockchain landscape is…

Databases · Computer Science 2019-10-23 Tien Tuan Anh Dinh , Anwitaman Datta , Beng Chin Ooi

We propose a new coded blockchain scheme suitable for the Internet-of-Things (IoT) network. In contrast to existing works for coded blockchains, especially blockchain-of-things, the proposed scheme is more realistic, practical, and secure…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-01-22 Amirhossein Taherpour , Xiaodong Wang

Digital currencies and cryptocurrencies have hesitantly started to penetrate the investors, and the next step will be the regulatory risk management framework. We examine the Value-at-Risk and Expected Shortfall properties for the major…

Risk Management · Quantitative Finance 2017-08-31 Stavros Stavroyiannis

Blockchain technology transformed the digital sphere by providing a transparent, secure, and decentralized platform for data security across a range of industries, including cryptocurrencies and supply chain management. Blockchain's…

Cryptography and Security · Computer Science 2023-06-22 Bilash Saha , Md Mehedi Hasan , Nafisa Anjum , Sharaban Tahora , Aiasha Siddika , Hossain Shahriar

Blockchain technology is an emerging digital innovation that has gained immense popularity in enhancing individual security and privacy within Information Systems (IS). This surge in interest is reflected in the exponential increase in…

Cryptography and Security · Computer Science 2024-09-24 Gauri Shankar , Md Raihan Uddin , Saddam Mukta , Prabhat Kumar , Shareeful Islam , A. K. M. Najmul Islam

The limit order book mechanism has been the core trading mechanism of the modern financial market. In the cryptocurrency market, centralized exchanges also adopt this limit order book mechanism and a centralized matching engine dynamically…

Computational Engineering, Finance, and Science · Computer Science 2022-12-21 Yeonwoo Jeong , Chanyoung Jeoung , Hosan Jeong , SangYoon Han , Juntae Kim

This paper proposes iblock, a comprehensive C++ library for Bitcoin simulation, designed for OMNeT++. iblock offers superior efficiency and scalability with respect to state-of-the-art simulators, which are typically written in high-level…

Cryptography and Security · Computer Science 2025-12-24 Niccolò Scatena , Pericle Perazzo , Giovanni Nardini

Cryptocurrency markets are experiencing rapid growth, but this expansion comes with significant challenges, particularly in predicting cryptocurrency prices for traders in the U.S. In this study, we explore how deep learning and machine…

Machine Learning · Computer Science 2025-08-05 Md Zahidul Islam , Md Shafiqur Rahman , Md Sumsuzoha , Babul Sarker , Md Rafiqul Islam , Mahfuz Alam , Sanjib Kumar Shil

We develop the first basic Operational Risk perspective on key risk management issues associated with the development of new forms of electronic currency in the real economy. In particular, we focus on understanding the development of new…

Risk Management · Quantitative Finance 2014-09-05 Gareth W. Peters , Ariane Chapelle , Efstathios Panayi

Modern cryptocurrencies exploit decentralised blockchains to record a public and unalterable history of transactions. Besides transactions, further information is stored for different, and often undisclosed, purposes, making the blockchains…

Cryptography and Security · Computer Science 2017-11-07 Massimo Bartoletti , Andrea Bracciali , Stefano Lande , Livio Pompianu

This paper presents Wrapless -- a lending protocol that enables the collateralization of bitcoins without requiring a trusted wrapping mechanism. The protocol facilitates a "loan channel" on the Bitcoin blockchain, allowing bitcoins to be…

The global financial landscape is experiencing significant transformation driven by technological advancements and evolving market dynamics. Moreover, blockchain technology has become a pivotal platform with widespread applications,…

Computational Engineering, Finance, and Science · Computer Science 2024-07-30 Maruf Ahmed Mridul , Kaiyang Chang , Aparna Gupta , Oshani Seneviratne

Two taxonomies of money that include cryptocurrencies are analyzed. A definition of the term cryptocurrency is given and a taxonomy of them is presented, based on how its price is fixed. The characteristics of the use of current fiat money…

General Finance · Quantitative Finance 2020-02-21 Jorge Barrera

In a previous paper, it was discussed whether Bitcoin and/or its blockchain could be considered a complex system and, if so, whether a chaotic one, a positive response raising concerns about the likelihood of Bitcoin/blockchain entering a…

Cryptography and Security · Computer Science 2019-11-12 Renato P. dos Santos , Melanie Swan

Blockchain has become a popular emergent technology in many industries. It is suitable for a broad range of applications, from its base role as an immutable distributed ledger to the deployment of distributed applications. Many…

Cryptography and Security · Computer Science 2022-12-20 Inwon Kang , Aparna Gupta , Oshani Seneviratne

The aim of this paper is to dig deeper into understanding the exchange rates and uncertainty dependence. Using the novel Baker et al. (2020)'s daily Twitter Uncertainty Index and BRICS exchange rates, we investigate their extreme tail…

Computational Finance · Quantitative Finance 2025-11-10 Nourhaine Nefzi , Abir Abid